CVE-2026-40897
Math.js is an extensive math library for JavaScript and Node.js. From 13.1.1 to before 15.2.0, a vulnerability allowed executing arbitrary JavaScript via the expression parser of mathjs. You can be affected when you have an application where users can evaluate arbitrary expressions using the mathjs expression parser. This vulnerability is fixed in 15.2.0.
- CVSS 3.1
- 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-26)
- CWEs
- CWE-915, CWE-917
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mathjs:mathjs
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-29qv-4j9f-fjw5 | npm | mathjs | >=13.1.1 <15.2.0 | 15.2.0 |
References
- https://github.com/josdejong/mathjs/commit/513ab2a0e01004af91b31aada68fae8a821326ad
- https://github.com/josdejong/mathjs/pull/3656
- https://github.com/josdejong/mathjs/security/advisories/GHSA-29qv-4j9f-fjw5
- https://access.redhat.com/security/cve/CVE-2026-40897
- https://bugzilla.redhat.com/show_bug.cgi?id=2461612